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. 2006 Jul 10;103(29):11081–11085. doi: 10.1073/pnas.0602038103

Fig. 1.

Fig. 1.

Induction of CRF genes by cytokinin. (A) Levels of CRF transcripts after cytokinin treatment were examined by using Northern blot analysis. (B) An unrooted phylogenic tree of the 65 ERF predicted proteins. Representative proteins are indicated; for a full list, see Fig. 5. The CRFs comprise a distinct subfamily with the cytokinin inducible members indicated by an asterisk. (C) Cytokinin induction of CRF transcripts requires type-B ARRs. Real-time PCR of CRF2 and CRF5 confirm that they are induced after cytokinin treatment (10 μM BA) for 1 h relative to a DMSO control in wild type, but are not induced in the type-B mutant arr1,12.